# SDR F3LA2018010800274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2018
- Submitted: January 8, 2018
- Operation: Air carrier
- Aircraft: [N704FR](https://openairdocs.org/aircraft/N704FR), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 6845
- Aircraft time: 8,187 hours, 3,390 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Line
- Part number: 38817631
- Condition: Leaking
- Location: Apu
- Part time: 8,187 hours, 3,390 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA2018010800274

## Discrepancy

WHEN APU BLEED WAS TURNED ON A BURNING ODOR AND CABIN BECAME HAZY.   TROUBLESHOT APU BLEED AND FOUND APU OIL COOLER TRANSFER LINES LEAKING.  REPLACED OIL COOLER TRANSFER LINES IAW SB 49-1113 AND AMM 49-91-44-420-056-A. PERFORMED SATISFACTORY LEAK CHECK IAW AMM 49-91-44-420-056-A.  PERFORMED SATISFACTORY APU DECONTAMINATION IAW AMM 21-00-00-615-002-A.  NO CONTAMINATION NOTED.  AIRCRAFT RETUNED TO SERVICE.

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